Yarn treating apparatus



April 15, 1941. H. v. LANG 2,233,225

YARN TREATIHG APPARATUS Filed Nov. l2, 1940 3 Sheets-Sheet l Snoenfor:

Egg Y Homgg YLANG MV/3W Cttorneg S April l5, 1941. H. v. LANG 2,238,225

mm TREAT'ING APPARATUS l Filed Nov. l2, 1940 3 Sheets-Sheet 2 Srwentor:

Hoiwsz Y LQHG Gttotneg l pril 15, 1941. H. v. LANG YARN TREATIG AFPARATUS Filed Nav. 12, 1940 3 heetsheeai; 5

Patented pr. 15, 1941 UNI-TED. STATES PATENTlorries;A

2,238,225 p YARN TREATING APPARATUS Homer V. Lang, Charlotte, N. C. A Application November 12, 1940, Serial No. 365,285

7 Claims. (Cl. 68-205) This invention relates to a. yarn conditioning apparatus and more especially to a machine for applying a treating agent to packaged yarn, such as bobbins, cops and the like. The present embodiment of the invention is an improvement over my former patent, No. 2,153,046 of April 4th, 1939, in whicha conveyor belt is employed for carrying bobbins of yarn beneath a spray. Also in my former patent, a plurality of laterally extending bafiles are disposed above the conveyor belt and into the path of the yarn packages thereon, which baies serve to turn the packages and subject all surfaces thereof lto the spray.

It is an object of this invention to provide an improved means for impelling the yarn packages, step by step, longitudinally through the machine, in combination with a simple means for turning the bobbins while they are exposed to a spray. Specifically, the invention comprises a trough having a slightly inclined grilled bottom onto which packages of yarn are continuously delivered. The trough is mounted for oscillation in an arc extending upwardly and rearwardly of the machine so that when the trough oscillates the' Packages will be impelled rearwardly of the machine beneath the spray and longitudinally of the trough. At a point beneath the spray, a downward step is provided in the bottom which allows the packages to fall to a lower level, thus causing the packages to turn so that other surlaces will be exposed to the spray.

Another object of the invention is to provide a yarn treating apparatus of the character described, having a trough which has a grilled bottom of such construction that the spray which is directed thereon will more readily drain therefrom at the outlet end than at the inlet end of the trough. The particular object in providing such an improved trough is to prevent certain portions of the yarn packages from becoming too wet. When the packages first move beneath the spray, they are much drier than when they leave the spray; consequently it is necessary for a greater amount of liquid which is directed onto the trough bottom to be retained thereon at the intake end, than at Ithe outlet end. This feature permits the bottom portions of the packages to absorb more of the treating solution when rst passing beneath the spray than when leaving the spray.

Of course, after the packages pass for some distance beneath the spray, they become impregnated with the liquid sprayed thereon, therefore a different type of bottom is necessary to afford better drainage. The grills serve to hold the Cil packages of yarn in elevated position to prevent surplus water from becoming absorbed in the yarn package.

Some of the objects of the invention having been stated, other objects will appear as the description proceeds when taken in connection with the accompanying drawings, in which- Figure 1 is a side elevation of my improved yarn treating apparatus;

Figure 2 is an elevation looking at the opposite side of Figure 1, showing portions of the liquid container broken away and other portions in section;

Figure 3 is a plan view of Figure 1;

Figure 4 is an elevation looking at the lefthand end of Figures 1 and 3;

Figure 5 is a longitudinal vertical sectional view taken along the line 5-5 in Figure 3;

Figure 6 is a sectional view through the by pass check valve 'I1 which is shown in elevation in the lower central portion of Figure 5;

Figure 7 is a vertical sectional View through one of the nozzles for directing the spray upon the bottom of the trough and upon the yarn packages thereon;

Figure 8 is a sectional plan view taken along the lines 8-8 in Figures 5 and 7;

Figure 9 is an enlarged transverse sectional detail view showing the 4construction of the grilled bottom of the trough.

Referring more particularly to the drawings, the numerals I0 and II' denote the side frames of my improved yarn treating apparatus, which frames are connected together near their lower ends by means of a transversely disposed channel member I2. Secured to the upper portion of the side frames I0 and II, are suitable plate members I4 and I5, respectively, in which are journaled the ends of horizontally disposed rods I6 and I1. The ends of each of the rods I6 and I'I project beyond the outer faces of the plate members I4 and I5 and upon these projecting ends are suitable ups-tending links I8 which are normally inclined toward the forward end of the apparatus, namely, the package receiving end.

Trough, construction a bottom which is' slightly inclined downwardly wardly and downwardly inclined wearing plate made of suitableymaterial such as rubber or Bakelite" onto which the yarn packages 26 are adapted to fall when delivered by conveyor belt |93. AIn order to prevent the packages from moving forwardly of the trough after being dropped thereon, a suitable plate member 21 is provided at the forward end thereof, the upper edge of said plate member 21 being disposed a substantial distance above the level of the wearing material 25.

The bottom construction of ythe trough adjacent the wearing plate 25 comprises a plurality of longitudinally disposed inverted U-shaped slats 29 (see Figure 9). The upper surface of the slats.

are attened as at 39; whereas the side edges are inclined downwardly as at 3|. Also a suitable space 32 is provided between the adjacent slats to permit the iluld which has accumulated upon the upper fiat surface 39 to pass therethrough. The rearmost ends of the slat members 29, that is the left hand end as shown in Figure 5, are supported by a cross bar which, in turn, is supported between the sidewalls 22 and 23. At this point, an abrupt downward step is provided in the bottom and this step is formed by securing one end of suitably spaced rods 31 to the lower 4side of the bar 35. The other ends of these rods extend downwardly and rearwardly of the trough and have the other ends thereof supported by a suitable transverse angle member 39.

It will be noted that the top surfaces of the rods 31 are round and are also spaced far enough apart to permit quick drainage. On the other hand the top surface 39 of the bars 29 permit a certain amount of moisture to be retained thereon, so that the packages of yarn will absorb the same.

The purpose of providing the riser or step 35 is to cause the packages of yarn 26 to turn over as they fall from one level to another to thereby expose other surfaces of the packages of yarn to the spray.

Spray and pump mechanism Located directly above the step or riser 35 is a plurality of spray heads 49. The detailed construction of these spray heads is shown in Figures '1 and 8. It is here seen that the liquid is adapted to pass into the spray head 49 by way of port 4I, then downwardly through valve opening l2 and then through the nozzle portion 43. The nozzle portion 43 has a hole 50 in the central portion thereof, the lower end of this hole communicating with a diamond-shaped groove 5I, and the upper end of the hole having a plurality of diamond-shaped converging groovesA 2 associated therewith. These grooves 5| and! 2 cause the liquid which passes through the opening 59 to be directed downwardly upon the trough bottom so as to cover a substantially rectangular area, thus permitting all portions of the bottom to be sprayed uniformly. It will also be noted that the step 35 in Figure 5 is disposed substantially midway between the outer edges of the spray, as it is directed upon the trough bottom. The purpose of so locating this riser or step 35 is to permit the bottom portion of the yarn packages 26 to absorb some of the liquid which has collected on the flat upper surfaces 30 of the longitudinal bars 29 before falling downwardly onto the round rods 31 and exposing other Cil surfaces to the spray. When the yarn packages reach the step 35 they have absorbed considerable liquid therefore it is not necessary for the bottom of the trough to supply as much liquid to the bottoms of the turned packages. As a result, a better drainage is provided for this portion of the bottom.

After passing through the trough bottom, the

liquid spray is collected in a 'funnel shaped member 55 which directs it into a container 56. This container has a suitable strainer 51 in the upper portion thereof to catch any loose ends of fiber. waste, trash or the like which might have been washed from the packages of yarn.

Leading from the lower end of the container 56 is a hose 59, the other end of which is connected to a pipe 69. This pipe has a safety valve 6| communicating therewith. The other end of pipe 69 ls connected to the intake side of a pump 62, said pump 62 being driven by a suitable shaft 63 which shaft has a suitable connectionf 64 for joining the same to the shaft 65 of motor 66. The output side of the pump 62 has a piped connection 68 extending therefrom, the upper end of which has a hose '69 leading upwardly and being connected to a pipe 19 which rests transversely of the trough. This pipe 19 has connected thereto upwardly extending pipes 1| which supply the liquid to the spray heads 49. It is thus seen that a complete circuit is formed in which the liquid is drawn from the container 56 through the pipe 62, hose 69, pipes 19 and 1|, and downwardly through spray heads 49 onto the packages of yarn 26 and onto the trough bottom.

By-pass mechanism In order'eto insure that the pressure will not become excessive between the spray heads 49 and the pump 62, a suitable by-pass arrangement is provided. This comprises a connection 15 extending upwardly from the pipe 69 on the intake side of the pump. To the upper portion of this connection is connected a bfy-pass valve 11, said valve having a bore 18 therein for accommodating a compression spring 19, (Figure 6) said compression spring being adapted to normally press a suitable ball 89 over an opening 8| to keep this opening closed. The opening 8| communicates with another connection 82, the other end of which leads into the connection 68 on the output side of the pump. When the pressure becomes excessive in the hose 69, then the ball 89 is forced to the right in Figure 6 thereby compressing the spring 18 and permitting the liquid which was forced from the pump to again be directed back into the intake line 69.

Conveyor drive The motor shaft 65 has a pulley 85 mounted thereon upon which a belt 86 is mounted, said belt 86 being also mounted upon a second pulley 81 thereaboveo which second pulley is disposed upon a transversely disposed shaft 88. The shaft 88 is supported by side frames I9 and Il, previously described, and has mounted on its other end a pulley 89 upon which a belt 99 is mounted. This belt is also disposed around a larger pulley 9| on transversely disposed shaft 92, which shaft is rotatably mounted in the upper portion of hopper assembly 93. A suitable tightener pulley 93a is provided for engaging the belt 99, said tightener pulley being rotatably mounted upon a stud shaft 94 which,v in turn, is adjustably mountedina horizontally disposed slot 95 support transverse slats'l02 thereby forming a 'conveyor belt, broadly designated bythe reference characterl |03. At spaced intervals` on chains suitable slats |04' are provided 'which are somewhat higher than the slats |02. These slats serve to engage the packages of yarn 2B in thevhopper and carry them upwardly as the conveyor rotates. l

- The conveyor belt chains |0| extend downwardly in the hopper and are also mounted upon a second set of sprockets |08, which sprockets are nxedly secured upon a transversely disposed'shaft |01. The shaft |01 has its ends rotatably mounted in blocks |08 slidably mounted in slots |09, said slots being disposed in the lower portion of ,the hopper assembly 93. A suitable screw I Ill has one end thereof engaging the block In! and its intermediate portion threadably secured in outstanding leg ||2` which forms an integral part of the hopper assembly. It is by this simple means that the proper tension is maintained in the conveyor belt |03 at all times. A

The lower portion of the hopper 93 has a bottom i I4 upon which the packages of yarn such as bobbins 2B are adapted Ito rest. As the conveyor belt it rotates, the slats, |04 gather the packages of yarn and .convey them upwardly and upon reaching the uppermost portion of the conveyor they are delivered onto the Bakelite wearing strip 25.

Trough oscillating mechanism e means for impelling the packages of yarn from .the Bakelite" strip 25, step-by-step, lon gitudinally of the trough will now be described. As heretofore stated, the links i8 are inclined upwardly and forwardly of the yarn' feeding apparatus; that is, the upper ends of the links are disposed nearer the delivery endl of thev conveyor v' M3 than the lower ends. Means are provided for of the trough; however, the forward. rocking is greater than the backward rocking, resulting in the bobbins turning over several times during the travel' through the trough. 'Ihis resultant turning of the bobbins is produced by the slight incline of the bottom, but therocking action of the cccentrics on the intermediate portion of transversely disposed shaft 88. It is seen that as the shaft 88 rotates, the eccentrics' I1 will cause the links ||5 as well .as the links I1 and I8 to move back and forth thereby oscillating the trough 24 upwardly and rearwardly through very short arcs whose centers are shafts I8 and I1.

It is to be understood that the trough bottom portions 2,9 and 31 may be inclined at any desired angle to suit a particular condition. In many instances, it might be desired not to in cline the bottom at all, but merely to provide the necessary movement of the packages of yarny through the increase of the stroke of oscillation. It has been found preferable, however, in most instances, to provide an inclined bottom which not only serves as an additional drainage for the upper bottom portion 29 but also assists in the movement of the yarn packages longitudinally of the-trough.

bobbins is provided by the oscillation lof the trough.

In the drawings andV specification, there has been set forth a preferred embodiment of the invention, and although specific terms are employed, they are used in a generic and descriptive sense only and not for purposes of limitation,

the scope of the invention being set forth in the appended claims.

bottom of the trough, means for directing a spray of treating fluid downwardly onto said packages and said bottom, and means for oscillating the through through said arc to cause the packages.

to move step-by-step rearwardly through the trough. Y

2. Apparatus for treating yarn packages and the like comprising a trough mounted for longitudinal oscillation through an arc extending upwardly and rearwardly of the` trough, said trough having a grilled bottom in theforward endthcreof, each of said grills comprising spaced bars having a fiat upper surface, the rear portion of said trough comprising a plurality of spaced circular rods, means for continuously delivering the packages onto said bottoms, means for directing a .spray of treating :duid downwardly onto said packages and onto said bottom, and means for I oscillating the trough through said arc to cause the packages to move step-by-step rearwardly the like comprising a trough mounted for longitudinal oscillation through an arc extending upwardly and rearwardly thereof, means for continuously delivering said packages onto said trough, the bottom of said trough being inclined downwardly and rearwardly thereof, means fordirecting a spray of treating fluid onto said packages and said trough bottom, and means for osclliating the trough through said arc to cause the bobbins to move step by step rearwardly of the trough.

. 4. Apparatus for treating yarn packages and the like comprising a trqililgh mounted for longitudinal oscillation throng an arc extending upwardly and rearwardly thereof, the bottom of said trough lying in two substantially parallel planes and forming an abrupt step intermediate the ends thereof, means for continuously delivering the packages onto the upper bottom portion of the trough, means for directing a spray of treating fluid onto said packages and onto both of said bottom portions, and means for oscillatingthe trough through said arc to cause the packages to lbe moved step by step rearwardly of the trough from the upper bottom portion onto the lower bottom portion and also to cause the packages to turn and other surfaces to be exposed to the downward spray as a result of the dropping from one bottom portion to the other.

5. Apparatus for treating yarn packages and the like comprising a trough mounted for longitudinal oscillation through an arc extending upwardly and rearwardly thereof, said trough having a pair of substantially parallel bottoms said bottoms overlapping each other at a point intermediate the ends of the trough to form a step, means for continuously delivering the packages onto the upper bottom, means for directing a spray of treating iluid onto said bottoms and onto said packages, said upper bottom including a plurality of spaced bars having a at upper surface and said lower bottom comprising a plurality of spaced rounded Abars whereby a greater amount of spray will be retained on the upper bottom than is retained upon the lower bottom, and means for oscillating the trough throughsaid arc to cause the packages to move step by step rearwardly of the trough and to be turned as they fall from one bottom to the other bottom.

6. Apparatus for treating yarn packages and the like comprising a trough having an inclined bottom mounted for oscillation in the direction of the incline, said bottom being adapted to support packages of yarn to be treated, means for directing a spray of treating fluid onto said packages and onto said bottom, and means for oscillating said trough to causethe packages to move step by step rearwardly of the trough beneath the spray.

7. Apparatus for treating yarn packages and the like comprising a trough having an inclined bottom mounted for oscillation in the direction of the incline, said bottom being adapted to support packages of yarn to be treated, means for directing a spray of treating fluid onto said packages and onto said bottom, meansI for oscillating said trough to cause the packages to move step by step rearwardly of the trough beneath the spray, and means intermediate the ends of said bottom for turning the packages and eXpQSlng other surfaces of the same to the spray.

HOMER V. LANG. 

